For bandpass filters, the discrete wavelength which has the maximum transmission value in the passband region.

Peak Wavelength is defined as the single wavelength of saturated color at the peak of the radiated spectrum.

The wavelength of maximum transmittance within the passband. Differs from the central wavelength only in filters exhibiting asymmetrical band shapes.

The maximum wavelength of an LED.

The wavelength at which the radiant intensity of a source is maximum (As seen by a photo detector).

The wavelength at which the optical power of a source is at a maximum.

In optical emitters, the spectral line having the greatest output power. Also called peak emission wavelength.

The wavelength of light that has the highest transmittance value.